Laminated ceramic electronic part including a plurality of internal electrodes having two leading portions and a non-exposed portion between the two leading portions

Abstract

A partial blank of internal electrode is previously provided on the area of a green sheet on which an internal electrode is formed and at which it is to be cut adjacent to a main part of the internal electrode constituting the capacitance of a capacitor. The propriety of a cutting position is judged by examining if a non-exposed portion corresponding to the partial blank of the internal electrode exists on the edge face of the laminated product obtained by cutting the laminated board. In addition, two leading portions are formed at the leading side of the internal electrode, and the end of the two leading portions is exposed at the edge face of the laminated product. In this arrangement, a non-exposed portion of the internal electrode is formed between the two leading portions.

What is claimed is: 
     
       1. A laminated ceramic part comprising: a laminated body including a plurality of internal electrodes on laminated ceramic layers,   wherein said plurality of internal electrodes are exposed at an edge face of said laminated body,   wherein each of the plurality of the internal electrodes include two leading portions at a leading side of the internal electrodes, and   wherein said each of the plurality of electrodes includes a non-exposed portion between the two leading portions.   
     
     
       2. A laminated ceramic electronic part according to claim 1, wherein a width of said non-exposed portion is not less than 20 μm and is not more than half a width of the laminated body. 
     
     
       3. A laminated ceramic electronic part according to claim 2, wherein a depth of said two leading portions from the edge face of said laminated body to an end of the non-exposed portion is predetermined to be not less than 10 μm and is smaller than a depth from the edge face of said laminated body to an end of another internal electrode adjacent to said internal electrodes. 
     
     
       4. A laminated ceramic electronic part according to claim 1, wherein a depth of said two leading portions from the edge face of said laminated body to an end of the non-exposed portion is not less than 10 μm and is smaller than a depth from the edge face of said laminated body to an end of another internal electrode adjacent to said internal electrodes. 
     
     
       5. A laminated ceramic part comprising: a laminated body including a plurality of internal electrodes on laminated ceramic layers,   wherein said plurality of internal electrodes are exposed at the an edge face of said laminated body,   wherein each of the plurality of electrodes includes two leading portions at a leading side of the internal electrodes, and at least one of the two leading portions has a width smaller than a width of a main part of said internal electrodes forming a capacitance of a capacitor,   wherein ends of said two leading portions are exposed at an edge face of said laminated body, and   wherein a depth of said two leading portions from the edge face of said laminated body to an end of a non-exposed portion between the two leading portions is smaller a depth from the edge face of said laminated body to an end of another internal electrode adjacent to the internal electrodes.   
     
     
       6. A laminated ceramic electronic part according to claim 5, wherein a width of said non-exposed portion is not less than 20 μm and is not more than half a width of the laminated body. 
     
     
       7. A laminated ceramic electronic part according to claim 6, wherein the depth of said two leading portions from the edge face of said laminated body to the end of the non-exposed portion is predetermined to be not less than 10 μm and is smaller than the depth from the edge face of said laminated body to the end of another internal electrode adjacent to said internal electrodes. 
     
     
       8. A laminated ceramic electronic part according to claim 5, wherein the depth of said two leading portions from the edge face of said laminated body to the end of the non-exposed portion is predetermined to be not less than 10 μm and is smaller than the depth from the edge face of said laminated body to the end of another internal electrode adjacent to said internal electrodes.